The Spice Girls have been reunited once again at the opening night of stage musical Viva Forever in London.

The band - Geri Halliwell, Emma Bunton, Victoria Beckham, Mel C and Mel B - were joined at the Piccadilly Theatre in the West End by Jennifer Saunders, who wrote the show set to the songs of The Spice Girls, and Mamma Mia's Judy Craymer.